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  • YACC1 – Yet Another Custom CPU
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Music Box

Music Box

This 1802 based music box plays several tunes encoded in EPROM. The speaker is driven by the Q line which is connected to a simple transistor circuit (visible at the top of the picture). The system too has been scavenged for parts. Note: I cannot remember why I would have painted the speaker white

http://cottageworker.com/wp-content/uploads/2014/05/

Author kenPosted on September 13, 2011September 2, 2014Categories 1802 projectsTags 1802x-xprojects, krpost, standalone

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  • YACC1 – Yet Another Custom CPU
    • YACC1 – Home Page
    • BUS/Motherboard
    • Memory
      • ROM-Switch Board (16 bytes)
      • RAM Latch Board
      • Memory Board large
    • ALU Board
    • Index Register Board
    • I/O Board
    • Sequencer Board Set
      • Sequencer logic
      • Sequencer memory
    • Test Board Basic
    • Test Board Complex
    • Software
      • Opcodes
      • Microcode
      • Assembler
      • BASIC
      • Emulator
    • YACC – Yet Another Custom CPU (all posts)
  • Other Projects
    • 1802 projects
    • Meter Clock
    • Other Projects
  • Business
    • EIR
    • Clippings
  • Methods
    • Othermill
  • Technologies
    • Clippings
  • Resources
    • Entrepreneurship Books
    • Other Books
  • About
    • Contact
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